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Sea foam and GDI #4810239
07/10/18 12:38 PM
07/10/18 12:38 PM
Joined: May 2017
Posts: 18
ga
dabo72 Offline OP
dabo72  Offline OP
Joined: May 2017
Posts: 18
ga
Is sea foam safe to run in fuel tank once in a while in a vehicle that is GDI? Thanks

Re: Sea foam and GDI [Re: dabo72] #4810247
07/10/18 12:43 PM
07/10/18 12:43 PM
Joined: Jan 2004
Posts: 4,167
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,167
California
You can run it, but it won't have any effect to clean up the valves. You need to either introduce a cleaning agent past the throttle body via a centrally-located vacuum point or take off the intake manifold and media blast the valves with ground walnut shells.

Re: Sea foam and GDI [Re: nthach] #4810279
07/10/18 01:08 PM
07/10/18 01:08 PM
Joined: May 2017
Posts: 18
ga
dabo72 Offline OP
dabo72  Offline OP
Joined: May 2017
Posts: 18
ga
Yes. I understand about the valves not being cleaned but will it help with anything else. I have a catch can installed to help the carbon issue.

Re: Sea foam and GDI [Re: dabo72] #4810300
07/10/18 01:29 PM
07/10/18 01:29 PM
Joined: Nov 2011
Posts: 1,060
Lyndhurst NJ
Audios Offline
Audios  Offline
Joined: Nov 2011
Posts: 1,060
Lyndhurst NJ
No I doubt it will do much else, maybe maybe some catalyst cleaning after combustion? Might clean up whatever gunk is inside combustion chamber, but I doubt much else. I wonder if running it in crankcase will do anything from the fumes attacking the carbon through pcv?


2002 VW Golf TDI-Mobil 1 5/40 TDT
2007 Mercedes GL320 CDI Fuchs 5/40 GT Pro XTL
2005 BMW M3 BMW Twin Power 10/60
2003 BMW M5-Fuchs 5/40
1998 BMW M3/4/5 Fuchs 5/40
Re: Sea foam and GDI [Re: dabo72] #4810410
07/10/18 03:21 PM
07/10/18 03:21 PM
Joined: Apr 2012
Posts: 9,409
Kendall, FL
wemay Offline
wemay  Offline
Joined: Apr 2012
Posts: 9,409
Kendall, FL
It will keep injectors clean and in turn maintain the spray pattern consistent with factory spec. This too is important to GDI platforms.

https://www.magnetimarelli.com/business_areas/powertrain/competences/definition-of-injector-target-(spray-targeting)-in-gdi-engines

https://www.sae.org/publications/technical-papers/content/2014-01-1439/


'18 KIA Sportage LX AWD 2.4L: MSS 10w30
'13 Hyundai Santa Fe Sport 2.0T: EDGE 5w30
Re: Sea foam and GDI [Re: dabo72] #4810678
07/10/18 08:01 PM
07/10/18 08:01 PM
Joined: Aug 2004
Posts: 302
San Diego
FlyPenFly Offline
FlyPenFly  Offline
Joined: Aug 2004
Posts: 302
San Diego
I believe the injectors in GDI engines stay clean due to the incredible high pressures they operate in.


2014 Mercedes GLK350 3.5L DFI
2014 Mercedes E350 Coupe 3.5L DFI
2007 Suzuki Grand Vitara 2.7L V6
Re: Sea foam and GDI [Re: dabo72] #4811793
07/11/18 09:13 PM
07/11/18 09:13 PM
Joined: Oct 2010
Posts: 931
South Eastern, CT
AMC Offline
AMC  Offline
Joined: Oct 2010
Posts: 931
South Eastern, CT
For GDI cleaning, get the aerosol seafoam and spray it directly into the intake by sticking the straw past the butterfly valve.

That should at least help the backs of the valves a little bit. I am guessing you would have to do this procedure pretty often, say every 10,000 miles or so, in order to keep them clean. Seafoam is pretty weak sauce by today's standards.


18 Honda CR-V - Factory Fill
17 Ram 1500 SLT - Napa Synthetic 5w-20
14 Yamaha Super Tenere - Delvac 15w-40

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